Log Message:
www/ruby-loofah: update to 2.2.1

## 2.2.1 / 2018-03-19

Addresses CVE-2018-8048. Loofah allowed non-whitelisted attributes to be present \ 
in sanitized output when input with specially-crafted HTML fragments.

This CVE's public notice is at https://github.com/flavorjones/loofah/issues/144